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Questions and Answers
What is the main component of plasma?
What is the main component of plasma?
What is the term for the layer of white blood cells in a centrifuged blood sample?
What is the term for the layer of white blood cells in a centrifuged blood sample?
What is the term for the solid components of blood?
What is the term for the solid components of blood?
What is the process by which a blood sample is separated into its components?
What is the process by which a blood sample is separated into its components?
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What is the term for the liquid part of blood after clotting?
What is the term for the liquid part of blood after clotting?
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What is the typical pressure at the junction of the venae cavae with the right atrium?
What is the typical pressure at the junction of the venae cavae with the right atrium?
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What is the effect of sympathetic nerve activity on blood vessels?
What is the effect of sympathetic nerve activity on blood vessels?
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What happens to the diameter of blood vessels when smooth muscle contracts?
What happens to the diameter of blood vessels when smooth muscle contracts?
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What is the result of increased sympathetic nerve activity on blood vessels?
What is the result of increased sympathetic nerve activity on blood vessels?
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What is the effect of reducing compliance in blood vessels?
What is the effect of reducing compliance in blood vessels?
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What is the term for the difference in colloid osmotic pressure between blood plasma and interstitial fluid?
What is the term for the difference in colloid osmotic pressure between blood plasma and interstitial fluid?
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What is the colloid osmotic pressure of interstitial fluid?
What is the colloid osmotic pressure of interstitial fluid?
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What is the significance of the oncotic pressure in the body?
What is the significance of the oncotic pressure in the body?
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Which of the following is a result of the colloid osmotic pressure difference between blood plasma and interstitial fluid?
Which of the following is a result of the colloid osmotic pressure difference between blood plasma and interstitial fluid?
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What would happen if the oncotic pressure of blood plasma were to decrease?
What would happen if the oncotic pressure of blood plasma were to decrease?
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What happens when the pressure in ventricles falls below that of atria?
What happens when the pressure in ventricles falls below that of atria?
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What is the primary purpose of atrial contraction?
What is the primary purpose of atrial contraction?
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During which phase of the cardiac cycle does the AV valve open?
During which phase of the cardiac cycle does the AV valve open?
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What happens to the pressure in the ventricles during rapid filling?
What happens to the pressure in the ventricles during rapid filling?
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What is the consequence of the AV valve opening during rapid filling?
What is the consequence of the AV valve opening during rapid filling?
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What is the number of chains in a Hemoglobin molecule?
What is the number of chains in a Hemoglobin molecule?
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What type of molecule is bound to each Globin chain?
What type of molecule is bound to each Globin chain?
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What element is contained in the heme molecule?
What element is contained in the heme molecule?
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What is the function of the Iron group in heme?
What is the function of the Iron group in heme?
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What is the name of the molecule formed by the combination of Globin chains and heme molecules?
What is the name of the molecule formed by the combination of Globin chains and heme molecules?
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Study Notes
Blood Composition
- Blood is composed of plasma and formed elements
- Formed elements include red blood cells, white blood cells, and platelets
Plasma
- Plasma is the fluid part of blood consisting of water and dissolved solutes
- Plasma proteins include globins, which are bound to heme, a red-pigmented molecule containing iron
- Iron group of heme combines with oxygen
Blood Pressure
- Lowest pressure at the junction of the venae cavae with the right atrium is 0 mmHg
- Rapid filling of ventricles occurs when pressure in ventricles falls below that of atria, and AV valve opens
- Atria contraction sends the last of blood to ventricles
Oncotic Pressure
- Blood plasma has a higher colloid osmotic pressure (25 mmHg) than interstitial fluid (0 mmHg)
- This difference is called oncotic pressure
Smooth Muscle Contraction
- Sympathetic nerve activity stimulates smooth muscle contraction
- Smooth muscle contraction reduces compliance (making the diameter smaller)
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Description
This quiz covers the different components of a centrifuged blood sample, including plasma, platelets, formed elements, and white blood cells. Learn about the 'buffy coat' and the structure of blood.
